Function Definition

Specifies the new value of the parameter specified by pname​ for program​.

Description

glProgramParameter specifies a new value for the parameter nameed by pname​ for the program object program​.

If pname​ is GL_PROGRAM_BINARY_RETRIEVABLE_HINT, value​ should be GL_FALSE or GL_TRUE to indicate to the implementation the intention of the application to retrieve the program's binary representation with glGetProgramBinary​. The implementation may use this information to store information that may be useful for a future query of the program's binary. It is recommended to set GL_PROGRAM_BINARY_RETRIEVABLE_HINT for the program to GL_TRUE before calling glLinkProgram​, and using the program at run-time if the binary is to be retrieved later.

If pname​ is GL_PROGRAM_SEPARABLE, value​ must be GL_TRUE or GL_FALSE and indicates whether program​ can be bound to individual pipeline stages via glUseProgramStages​. A program's GL_PROGRAM_SEPARABLE parameter must be set to GL_TRUEbeforeglLinkProgram​ is called in order for it to be usable with a program pipeline object. The initial state of GL_PROGRAM_SEPARABLE is GL_FALSE.

Errors

GL_INVALID_OPERATION is generated if program​ is not the name of an existing program object.

GL_INVALID_ENUM is generated if pname​ is not one of the accepted values.

GL_INVALID_VALUE is generated if value​ is not a valid value for the parameter named by pname​.